Re: Stepper Driver Modification

Hi Chuck,


Are these kit or manufactureerd boards ? or are these home-brew ?

I'm betting that kit or manufacturered, there are guys who have
already chewed their teeth on your problem and can offer insight.


I'm guessing you have not cut out and pulled the 555 chip and
unsoldered the leads?

Dave





--- In CAD_CAM_EDM_DRO@yahoogroups.com, Chuck Knight
<chuckknight@h...> wrote:

> Did you ever have "one of those" projects? The kind you just can't

get

> to work right?
>
> Well, mine is my stepper driver boards! I should be able to do it

in my

> sleep, but it just won't work. It's a simple circuit that uses a
> 297/298 chipset...
>
> Is there anyone (preferbly in North Texas -- I know there are

several in

> my area, on the list) who would be willing to help me modify my

simple

> little stepper boards? They have an on board 555 as a pulse

generator,

> and I need to bypass it and convert to external input for
> step/direction. Simple... Harvey even sent me instructions (BTW:
> Thank you, Harvey!) -- it's just giving me fits, though. I think

I

> need someone, physical, sitting next to me, helping me with the
> modification. Or, if someone's willing to do it for me, I'm more

than

> willing to ship them to you! (hint, hint!)
>
> It's about a 5 minute job...and I can't seem to get it to work!

ARGH!

> Sorry...I'm just frustrated... I should be able to do this in my
> sleep! I hate it when projects "go bad."
>
> Thanks for any help you can provide...
>
> -- Chuck Knight